On Mon, Sep 11, 2023 at 05:08:55PM +0200, Ahmad Fatoum wrote: > GCC's strong stack protector feature is increasingly used as default in > many distros, because of comparatively low overhead. This series adds > support in barebox to catch stack frame overflow as well as a guard > page feature to catch stack region overflow. > > Ahmad Fatoum (5): > include: move PAGE_ definitions into linux/pagemap.h > ARM: mark early C setup functions as __prereloc > lib: add stackprotector support > ARM: mmu: catch stack overflowing into TTB with stack guard page > commands: add stacksmash command for causing stack overflows Applied, thanks Sascha > > Makefile | 3 - > arch/arm/cpu/common.c | 2 +- > arch/arm/cpu/interrupts_32.c | 21 +++++- > arch/arm/cpu/interrupts_64.c | 38 +++++++--- > arch/arm/cpu/mmu_32.c | 16 +++++ > arch/arm/cpu/mmu_64.c | 15 ++++ > arch/arm/cpu/start.c | 4 +- > arch/arm/include/asm/barebox-arm.h | 18 ++++- > arch/arm/include/asm/reloc.h | 2 +- > arch/arm/lib64/string.c | 2 +- > commands/Kconfig | 6 ++ > commands/Makefile | 1 + > commands/stacksmash.c | 58 ++++++++++++++++ > include/common.h | 6 +- > include/linux/compiler_types.h | 21 ++++++ > include/linux/pagemap.h | 8 ++- > lib/Kconfig | 2 + > lib/Kconfig.hardening | 108 +++++++++++++++++++++++++++++ > lib/Makefile | 1 + > lib/stackprot.c | 32 +++++++++ > lib/string.c | 2 +- > scripts/Makefile.lib | 10 +++ > 22 files changed, 350 insertions(+), 26 deletions(-) > create mode 100644 commands/stacksmash.c > create mode 100644 lib/Kconfig.hardening > create mode 100644 lib/stackprot.c > > -- > 2.39.2 > > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
